Date: Sat, 13 Jul 2002 16:31:30 -0400 (EDT) From: Chris BeHanna <behanna@zbzoom.net> To: FreeBSD-Stable <stable@freebsd.org> Subject: Re: Software raid 1 on root partition? Message-ID: <20020713162837.R15564-100000@topperwein.dyndns.org> In-Reply-To: <20020713100218.B284@twincat.vladsempire.net>
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On Sat, 13 Jul 2002, Josh Paetzel wrote: > On Sat, Jul 13, 2002 at 07:51:09AM +0200, Steve O'Hara-Smith wrote: > > On Sat, 13 Jul 2002 12:55:46 +0930 > > Greg 'groggy' Lehey <grog@FreeBSD.org> wrote: > > > > G> The question was about software RAID. That's currently still not > > G> possible. > > > > OK now I'm confused - if you set up a RAID1 array with atacontrol > > on a standard (non RAID) controller what's doing the RAID if it isn't the > > ata driver software ? > > > > -- > > C:>WIN | Directable Mirrors > > That would be nothing. You can do software raid with vinum > or some other utility, or you can do hardware ata raid with a > promise or highpoint controller and interface to it with > atacontrol. You can't use atacontrol to make a standard non-raid > IDE controller do raid. behanna@topperwein> man atacontrol [...big snip...] Allthough the ATA driver allows for creating an ATA RAID on disks ^^^^^^^^ on any controller, there are restrictions. It is only pos- sible ^^^^^^^^^^^^^^^^^ to boot on an array if its either located on a "real" ATA RAID controller like the Promise or Highpoint controllers, or if the RAID declared is of RAID1 or SPAN type, in case of a SPAN the partition to boot must reside on the first disk in the SPAN. -- Chris BeHanna http://www.pennasoft.com Principal Consultant PennaSoft Corporation chris@pennasoft.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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